FR2632749B1 - Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres - Google Patents

Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres

Info

Publication number
FR2632749B1
FR2632749B1 FR8807791A FR8807791A FR2632749B1 FR 2632749 B1 FR2632749 B1 FR 2632749B1 FR 8807791 A FR8807791 A FR 8807791A FR 8807791 A FR8807791 A FR 8807791A FR 2632749 B1 FR2632749 B1 FR 2632749B1
Authority
FR
France
Prior art keywords
calibrating
eccentric circular
ray scanner
standards
circular standards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR8807791A
Other languages
English (en)
French (fr)
Other versions
FR2632749A1 (fr
Inventor
Andrei Feldman
Dominique Cornuejols
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric CGR SA
Original Assignee
General Electric CGR SA
Thomson CGR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric CGR SA, Thomson CGR filed Critical General Electric CGR SA
Priority to FR8807791A priority Critical patent/FR2632749B1/fr
Priority to DE8989401458T priority patent/DE68900217D1/de
Priority to EP89401458A priority patent/EP0346181B1/fr
Priority to ES89401458T priority patent/ES2024718B3/es
Priority to US07/362,680 priority patent/US5214578A/en
Priority to JP1148207A priority patent/JP2753517B2/ja
Publication of FR2632749A1 publication Critical patent/FR2632749A1/fr
Application granted granted Critical
Publication of FR2632749B1 publication Critical patent/FR2632749B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
FR8807791A 1988-06-10 1988-06-10 Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres Expired - Fee Related FR2632749B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR8807791A FR2632749B1 (fr) 1988-06-10 1988-06-10 Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres
DE8989401458T DE68900217D1 (de) 1988-06-10 1989-05-29 Verfahren und anordnung zur eichung eines x-ray-skanners mit verwendung eines oder mehrerer runder exzentrischer eichmasse.
EP89401458A EP0346181B1 (fr) 1988-06-10 1989-05-29 Procédé et système d'étalonnage d'un scanner à rayons x en utilisant un ou plusieurs étalons circulaires excentrés
ES89401458T ES2024718B3 (es) 1988-06-10 1989-05-29 Proceso y sistema de calibracion de un scaner de rayos x utilizando uno o varios patrones circulares excentricos
US07/362,680 US5214578A (en) 1988-06-10 1989-06-07 Method and system for the calibration of an x-ray scanner using an off-centered circular phantom
JP1148207A JP2753517B2 (ja) 1988-06-10 1989-06-09 １つまたは複数の円形偏心ファントムを用いたｘ線スキャナの較正方法とシステム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8807791A FR2632749B1 (fr) 1988-06-10 1988-06-10 Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres

Publications (2)

Publication Number Publication Date
FR2632749A1 FR2632749A1 (fr) 1989-12-15
FR2632749B1 true FR2632749B1 (fr) 1990-08-24

Family

ID=9367180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8807791A Expired - Fee Related FR2632749B1 (fr) 1988-06-10 1988-06-10 Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres

Country Status (6)

Country Link
US (1) US5214578A (ja)
EP (1) EP0346181B1 (ja)
JP (1) JP2753517B2 (ja)
DE (1) DE68900217D1 (ja)
ES (1) ES2024718B3 (ja)
FR (1) FR2632749B1 (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5565678A (en) * 1995-06-06 1996-10-15 Lumisys, Inc. Radiographic image quality assessment utilizing a stepped calibration target
FR2737005A1 (fr) * 1995-07-18 1997-01-24 Ge Medical Syst Sa Procede d'etalonnage geometrique d'un appareil d'imagerie
US5774519A (en) * 1997-01-30 1998-06-30 Analogic Corporation Method of and apparatus for calibration of CT scanners
US6148057A (en) * 1998-11-02 2000-11-14 Analogic Corporation Apparatus and method for calibrating detectors in a computed tomography scanner
DE10224315B4 (de) * 2002-05-31 2007-11-15 Siemens Ag Verfahren zum Bestimmung von Korrektur-Koeffizienten für Detektorkanäle eines Computertomographen
FR2848806B1 (fr) * 2002-12-18 2005-11-04 Ge Med Sys Global Tech Co Llc Procede de calibrage d'un appareil d'imagerie radiologique necessitant un nombre limite d'acquisitions
US6848827B2 (en) * 2003-05-13 2005-02-01 General Electric Company Method and apparatus for calibrating detector spectral response
WO2005011502A1 (ja) * 2003-07-30 2005-02-10 Hitachi Medical Corporation 放射線断層撮影装置
JP3919724B2 (ja) 2003-09-19 2007-05-30 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 放射線計算断層画像装置および断層像データ生成方法
JP2006000225A (ja) * 2004-06-15 2006-01-05 Canon Inc Ｘ線ｃｔ装置
CN100580701C (zh) * 2004-07-07 2010-01-13 皇家飞利浦电子股份有限公司 用于校正层析x射线摄影图像中的时间伪像的系统和方法
US7950849B2 (en) * 2005-11-29 2011-05-31 General Electric Company Method and device for geometry analysis and calibration of volumetric imaging systems
DE602007010192D1 (de) * 2006-01-26 2010-12-16 Toshiba Kk Röntgen-CT-Gerät, sowie Verfahren zur Phantomzuweisung
US7922390B2 (en) * 2007-03-29 2011-04-12 Varian Medical Systems, Inc. Method and apparatus to facilitate forming detector-level calibration information for a high energy-based scanner
US8259897B2 (en) * 2008-04-25 2012-09-04 Agency For Science, Technology And Research Computed tomography method and apparatus for centre-of-rotation determination
WO2010050970A1 (en) * 2008-10-31 2010-05-06 Analogic Corporation Measurement of position of center detector for geometric calibrating a ct scanner based on a complex phantom
GB0821561D0 (en) * 2008-11-26 2008-12-31 Siemens Medical Solutions Automated image quality test computation
US8353628B1 (en) * 2008-12-04 2013-01-15 Xradia, Inc. Method and system for tomographic projection correction
US8121250B2 (en) * 2009-02-02 2012-02-21 Arineta Ltd. Method for calibration of a CT scanner
US8777485B2 (en) 2010-09-24 2014-07-15 Varian Medical Systems, Inc. Method and apparatus pertaining to computed tomography scanning using a calibration phantom
DE102010042388A1 (de) * 2010-10-13 2012-04-19 Siemens Aktiengesellschaft Verfahren zur Kalibrierung eines CT-Systems mit zumindest einer Fokus-Detektor-Kombination mit einem quantenzählenden Detektor
US9645255B2 (en) * 2011-09-21 2017-05-09 Varian Medical Systems Particle Therapy Gmbh Method for efficient daily constancy check or calibration of proton therapy system
CN103969269B (zh) * 2013-01-31 2018-09-18 Ge医疗系统环球技术有限公司 用于几何校准ct扫描仪的方法和装置
JP2018119786A (ja) * 2015-05-26 2018-08-02 株式会社島津製作所 測定方法および放射線撮影装置
US9931098B2 (en) 2016-04-14 2018-04-03 Carestream Health, Inc. Post acquisition calibration
CN110353713A (zh) * 2019-07-16 2019-10-22 上海联影医疗科技有限公司 几何校正模体、重建图像几何参数的确定方法和装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1430088A (en) * 1972-05-17 1976-03-31 Emi Ltd Radiography
NL7710052A (nl) * 1977-09-14 1979-03-16 Philips Nv Inrichting voor computer-tomografie.
JPS5594241A (en) * 1979-01-11 1980-07-17 Hitachi Medical Corp Xxray transverse layer device
US4400827A (en) * 1981-11-13 1983-08-23 Spears James R Method and apparatus for calibrating rapid sequence radiography
JPS6048731A (ja) * 1983-08-29 1985-03-16 株式会社日立メディコ Ｘ線断層装置
US4663772A (en) * 1985-09-30 1987-05-05 Picker International, Inc. Bone mineral analysis phantom
US4980904A (en) * 1985-11-15 1990-12-25 Picker International, Inc. Radiation imaging calibration
US4787098A (en) * 1987-04-10 1988-11-22 Kabushiki Kaisha Toshiba Method for obtaining calibrated tomographic image data to correct for collimator width differences
US4873707A (en) * 1987-09-11 1989-10-10 Brigham & Women's Hospital X-ray tomography phantoms, method and system
US4897788A (en) * 1988-04-18 1990-01-30 General Electric Company Image correction for computed tomography to remove crosstalk artifacts

Also Published As

Publication number Publication date
JP2753517B2 (ja) 1998-05-20
US5214578A (en) 1993-05-25
EP0346181A1 (fr) 1989-12-13
ES2024718B3 (es) 1992-03-01
FR2632749A1 (fr) 1989-12-15
EP0346181B1 (fr) 1991-08-21
DE68900217D1 (de) 1991-09-26
JPH0231744A (ja) 1990-02-01

Similar Documents

Publication Publication Date Title
FR2632749B1 (fr) Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres
EP0595299A3 (en) Image capture method and apparatus for a wide dynamic range.
ZA914556B (en) Intramedullary nailing method and apparatus
EP0599578A3 (en) Device and method for a structure to be implanted.
EP0626592A3 (en) Electronic method and apparatus for capturing an X-ray image.
EP0643358A3 (en) Method and device for image search.
FR2685643B1 (fr) Procede de commande d'un defibrillateur implante.
GB8827350D0 (en) Keyboard scanner apparatus & method
BR9202946A (pt) Aparelho e metodo de vigilancia
FR2726926B1 (fr) Systeme surveillant un repondeur implantable reprogrammable et procede d' etalonnage de celui-ci
EP0602475A3 (en) Method and apparatus for obtaining an X-ray image for use of a solid state element.
GB9219335D0 (en) A device for and a method of,identifying a person or an instrumentality
EP0659013A3 (en) Method and device for scanning an object.
GB2240563B (en) Arrangement and method for conducting substance and lock therefor
DE69026320D1 (de) Halbtonbilddatenkomprimierungsverfahren und -vorrichtung
IL94042A0 (en) Method and apparatus for achieving improved anti-jam performance via conversion gain
EP0481091A4 (en) Method, device and substance for forming picture
EP0439912A3 (en) Circuit and method for normalizing detector output
DE69020937T2 (de) Abbildungsverfahren und -vorrichtung.
HK67994A (en) System and method for broad spectrum drug detection
AU6852090A (en) Improved solid imaging method and apparatus
DE69013571D1 (de) Röntgenbildsynchronisationsverfahren und -vorrichtung.
AR243721A1 (es) Pistola para implantar un objeto en un animal.
DE69018394D1 (de) Bilddatenkompressionsverfahren und -vorrichtung.
HU912989D0 (en) Method and apparatus for surveying an area

Legal Events

Date Code Title Description
ST Notification of lapse